ci: make path filter more accurate (#2381)

.github/workflows/build-windows.yaml

@@ -53,11 +53,11 @@ jobs:
           - go.mod
           - go.sum
           EOF
-          module=$(grep ^module go.mod | awk '{print $2}')
-          go list -f '{{ join .Deps "\n" }}' cmd/windows | grep ^$module/ | while read pkg; do
-            echo "- ${pkg#${module}/}/*" >> $filter
+
+          sh hack/go-list.sh cmd/windows | while read f; do
+            echo "- $f" | tee -a $filter
           done
-          
+
       - uses: dorny/paths-filter@v2
         id: filter
         with:

hack/go-list.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+
+path=$1
+module=$(grep ^module "$(dirname $0)/../go.mod" | awk '{print $2}')
+go list -f '{{ join .Deps "\n" }}' -compiled ./$path/... | grep ^$module/ | while read pkg; do
+    d="${pkg#${module}/}" 
+    go list -f '{{ join .CompiledGoFiles "\n" }}' -compiled ./$d | while read f; do 
+        echo "$d/$f"
+    done
+done